Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
(4.732*10^20) / (1.62*10^-9*9.89*10^13)
(4.732*10^20) / (1.62*10^-9*9.89*10^13)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random